煤田地质与勘探2017，Vol.45Issue(3)：165-169,5.DOI:10.3969/j.issn.1001-1986.2017.03.031
韩城桑树坪二号井松软煤层钻进技术研究与实践
Research and practices on drilling in soft coal seams in Hancheng Sangshuping coal mine
刘新民 1王力 2王建利 1黄寒静 2宋朝晖 1王建强2
作者信息
- 1. 陕西陕煤韩城矿业有限公司,陕西韩城 715400
- 2. 中煤科工集团西安研究院有限公司,陕西西安 710077
- 折叠
摘要
Abstract
Aiming at the problems such as shallow drilling depth of gas drainage holes and low drilling efficiency caused by soft and broken seams, small capacity and low degree of automation of existing equipment and unreasonable drilling technology, drilling technology test was carried out in seam 3 in the study mining area by using rotary drilling with large auger stem, air and clean waterdrilling with wide rib auger drill pipe. The results show that the water drilling with wide rib auger drill pipe was the suitable drilling method for gas drainage borehole, the drilling efficiency was 1.5 times higher than before, the borehole depth increased from 80 m to more than 200 m, the borehole-forming rate was up to 80%, meeting the needs of drilling gas drainage boreholes in working face in Sangshuping coal mine.关键词
松软煤层/瓦斯抽采/钻进技术/试验研究Key words
soft coal seam/gas drainage/drilling technology/experimental study分类
矿业与冶金引用本文复制引用
刘新民,王力,王建利,黄寒静,宋朝晖,王建强..韩城桑树坪二号井松软煤层钻进技术研究与实践[J].煤田地质与勘探,2017,45(3):165-169,5.
